Road-scraper.



c. HoWARD. ROAD SGRAPBR. APPLICATION FILED SBPT.B0,1912.

41,099,371 Patented June 9, 1914.

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Patented June 9, 1914.

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Jnvntor witnesses C. HOWARD. ROAD SGRAPBB.. APPLIoATlon FILED SEPT. 20.1912.

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Patented June 9,1914.

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C. HOWARD.

ROAD SGRAPER.

APPLIoATIoN FILED SEPT. 20,1912.

1,099,371, Patented June 9, 1914u 4 SHEETS-SHEET 4.

cnLlJMBlA PLANGORAPN 60 WASHINGTON. D, l

CORNELIUS HOWARD, OF GAS, KANSAS.

ROADLSCR-APER.

Specification of Letters Patent.

Patented June 9, 1914.

Application led September 20, 1912. Serial No. 721,402.

To all whom t may concern.'

Be it known that I, CORNELIUS HOWARD,

a citizen of the United States, residing at Gras, in the county of Allen and State of Kansas, have invented certain new and useful Impropements in Road- Scrapers, of which the following is a specification.

My invention relates to machines for` making roads and has for one of its objects the provision of a road making machine provided with a vertically adjustable scraper and novel means for adjusting the scraper.

Another object of my invention is the provision of means for adjusting either end of the scraper relatively to the other end thereof.

Another object of my invention is the provision of means for adjusting the `angle of cut of the scraper relatively to the line of draft.

My invention will be described in detail hereinafter and illustrated in the accompanying drawings, in which,

Figure 1 is a top plan view of myimproved road scraper; Fig. 2, a side view in elevation; Fig. 8, a longitudinal sectional view; Fig. 4, a cross section on the line 4-4 of Fig. 1 looking in the direction of the arrow; Fig. 5, a detail view of the detent mechanism for holding the shaft for adjusting the angular position of f the scraper blade from rotation; Fig. 6, a cross section on the line (5"6 of Fig. 5; Fig. 7, a detail view of the means for locking the vertical adjusting mechanism; Fig. 8, a cross section on the line 8 8 of Fig. 7; Fig. 9, a detail view of the bracket secured to the middle of the scraper blade to which the vertical adjusting mechanism is secured; and Fig. 10, a detail view of one of the brackets secured adjacent to the terminals of the scraper blade on which is mounted the angular and tilting adjusting mechanism.

In the drawings similar reference characters will be used to designate corresponding parts throughout the several views.

My improved road scraper comprises a frame 1 having its forward part constructed of two side sills 2 and d` on eachside of the frame and spaced apart as clearly shown in Fig. 1 and the forwardmost portion of the side sills 2 and 3 have a plate 4 mounted thereon.

5 indicates an axle secured by means of brackets 6 and 7 under the rearmost portion of the frame 1 and 8 indicate wheels journaled on said axle.

9 indicates a bolster secured under the plate 4 and 10 a vertical shaft journaled in ,said bolster and in the plate 4 and having its lower terminal bifurcated as shown at 11 and a wheel 12 journaled between the arms of said bifurcated portion 11.

,13 indicatesa draft pole secured to the arms 11 and adapted to have any desired form of draft appliance (not shown), secured thereto.

14 indicates a floor secured to the under side of the frame 1.

15 indicates an inverted U-shaped frame mounted on the floor 14 and 1G indicates a vertical. beam slidably mounted in an opening 17 in said frame 15 and an opening 18. The beam 16 has a longitudinal rack face 19 mounted thereon and 20 indicates a pinion meshing with said rack face and keyed to a shaft 21 j ournaled in the U-shaped frame 15.

22 indicates a hand wheel secured to the Ashaft 21 and adapted to rotate said shaft` to adjust the beam 16.

The lower terminal of the beam 16 is secured to a scraper blade 23 by means of a bracket member 24 having laterally eXtending arms 25 and 26 on :its two terminals and provided with openings 27, 28 respectively, to receive the beam, said lower terminal of the beam being formed cylindricalas shown at 29 to permit of rotation of the scraper blade on said beam terminal. 30 indicates a split pin or analogous fastening mounted in the lower' end of said cylindrical portion 29 to hold the scraper blade 23 in position on the beam.

31 indicates a sliding bolt mounted in a i U-shaped casing 32 secured to the floor 14 and adapted to engage the rack 19 of the beam 16 to hold said rack in adjusted position.

It will be understood from the above de` scription and inspection of the drawings that the scraper blade 23 is adapted to be adjusted relatively to the frame 1 by rotating the hand wheel 22, the rotation of said hand wheel 22 rotating the shaft 21 and the pinion 20 that is mounted thereon by engaging the rack 19 will raise or lower the bea-m 16 as desired, and when the beam is in proper position to position the scraper blade l 23, the bolt 31 is moved into position to engage the rack 19 and the scraper blade ,will` 26 of the vbracket 24 and in addition thereto the openings 27 and 28 are sufficiently larger in diameter than the cylindrical portion 29 of said beam 16 to permit the blade 23 to be tilted through a vertical plane. Secured adjacent to the terminals of the blade 23 are brackets 33 having rearwardly extending arms 34 and 35 in openings 36 and 37, respectively.

j' Y1,099,371l A 38 indicates a beam swivelly mounted in-VV termediate of its ends on the shaft 10 and having a plate 39 secured to each of its terminals with a reduced portion 40 on its upper and lower ends.

41 indicates plow beams having their forward terminals bifurcated as. shown at 4 2 and pivotally mounted on the reduced portions 40 of the plates 39 while the rear terminals of said plow beams are formed with goose-necks 43 that are loosely and pivotally mounted in the openings 36 and 37 in the arms 34 and 35 of brackets 33.

44 indicates a shaftournaled in the ioor 14 andrhaving its lower terminal provided with a reduced portion 45 that is journaled inan opening 46 in the axle 5, said shaft 44 being rotatable by means of a hand wheel 47.

48 designates a pinion secured to shaft 44 and 49 a bolt slidably mounted by means of a pin 50 secured to the floor 14 and engaging a slot 51 in said bolt, 52 indicating guides secured to said floor and engaging the sides of said bolt. The bolt 49 is formed with a reduced end 53 that is adapted to engage between the teeth of the pinion 48 to hold the' shaft 44 inrotation when desired.

54 indicates a rope secured to shaft 44 intermediate of its ends and given one or more turns around said shaft, the two ends of said rope being' crossed as shown at 55 and trained around pulleys 56 journaled on the forward end of the frame 1, the ends of said rope being secured to the plates 39.

It will be understood from the above description that the blade 23 may be adjusted at diiferent angles relatively to the line f draft by rotating the shaft 44 to move one or the other end of said blade forwardly relatively to the frame 1.

The side sills 2 and 3 on each side of the frame l have secured thereto upright plates 5,7 and 58 respectively, in which are journaled crank shafts 59 and stud shafts 60, said crank shafts having gear wheels 61 mounted thereon that mesh with gear wheels 62 secured to shaft 60, and 63 indicates hand wheels also secured to the shaft 60.

64 indicates gravity pawls mounted on theV sills 3 and adapted to engage the gear wheels 61, and 65 indicates other gravity pawls also pivot-ally secured to said sills 3 and adapted to engage gear wheels 62.

66 indicates a Vrod secured to each crank shaft 59 and having its, lower end formed with a bifurcatedV angular portion 67 pivotally secured to the goose neck 43 of the n plow beam 41.` Y

It `will be understood from the above description that the scraper blade 23 mayv be adjustedin a vertical plane by means of the shafts 60 rotated by means of the hand wheel 63 and through the gearing 61 and 62 rotating the crank shafts 59. As the. rods 66 secured to said crank shafts are also secured to the ends of the scraper blade 23 through the goose necks 43 engagingthe brackets 33,it will be apparent that either end of the blade 23 may be raised or lowered as desired to adjust thev angle of the blade relatively to the ground to suit" the work to be Yaccomplished with the machine, the pawls 64and 65 being thrown out of engagement with the gear wheels 61 and 62 when it is desired to adjust the scraper blade, and when the ad justment has been accomplished are returned to engagement with said gear wheels to hold the adjustment mechanism in position. j l

Having thus described theinvention what I claim is a In a road scraper, a wheeled frame, vertical shaft journaled adjacent to the forward end of said wheeled frame and having a steering. wheel for said wheeled frame journaled thereon, j a :beamy pivotally mounted on said vertical shaft,

plow beams pivotally connected to theends l "of said pivoted beam,each of said plow beams being formed with a .goose-neck,

scraper blade secured to said goose-necks,

pulleys journaled on the forwardend of said wheeled frame, a vertical shaft j ournaled in the rear end of said wheeled frame, a rope Y secured intermediate of its` ends to the last` mentioned vertical shaft, Ythe ends of said rope being wound upon said shaft, said rope ends being crossed and trained around the l pulleys on the forward end of the wheeled frame, and the extremities of said rope secured to the terminals of the pivoted beam.

In testimony whereof I affix my signature in presence of two witnesses. Y CORNELIUS HOWARD. Witnesses:

' L. SPARKS,

F. L. ToMrKINs.

Copies of this patentk may be obtained for ve cents `each, by addressing the Commissioner ofPatents,

Washington, D. C. 

